Screen sharing system of digital main control room in nuclear power plant

Abstract

The present invention relates to a screen sharing system of a nuclear power plant main control room for improving operation safety of a power plant. According to an example of the present invention, a power plant control screen of each operator is shared in real-time among other operators by a simple manipulation such that operators can easily simultaneously check a power plant operation screen of other operators, whereby a mistake of another operator can be detected and manipulated in time, thus improving operation safety of a power plant.

The invention claimed is: 
     
       1. A screen sharing system for a digital main control room of a nuclear power plant, wherein the screen sharing system includes an information processing system for digital control, the screen sharing system comprising:
 an image signal output unit outputting and transmitting an image signal generated by using the information processing system; 
 a sharing screen displaying unit receiving the image signal and displaying the same; 
 an image signal relay unit connected to the image signal output unit and the sharing screen displaying unit, and receiving and outputting the image signal; 
 a detection signal generating unit generating a detection signal by detecting a manipulation of a control command input means of a power plant which is provided in the information processing system; 
 a sharing control signal generating unit selecting in real-time an image signal in response to the detection signal, and generating a sharing control signal selecting the sharing screen displaying unit selected by a user; and 
 an image signal relay control unit receiving the sharing control signal generated by the sharing control signal generating unit and the detection signal generated by the detection signal generating unit, and controlling input/output of the image signal relay unit such that the image signal selected in real-time according to the received detection signal is displayed on the sharing screen displaying unit selected according to the sharing control signal. 
 
     
     
       2. The screen sharing system of  claim 1 , wherein the sharing control signal generating unit: selects an image signal selected by a user or selects an image signal in real-time in response to the detection signal; and generates the sharing control signal selecting the sharing screen displaying unit selected by the user, and
 the image signal relay control unit: receives the sharing control signal generated by the sharing control signal generating unit, and controls input/output of the image signal relay unit such that the image signal selected according to the received sharing control signal is displayed on the selected sharing screen displaying unit; or receives the sharing control signal generated by the sharing control signal generating unit and the detection signal generated by the detection signal generating unit, and controls input/output of the image signal relay unit such that the image signal selected in real-time according to the received detection signal is displayed on the sharing screen displaying unit selected according to the received sharing control signal. 
 
     
     
       3. The screen sharing system of  claim 1 , wherein the image signal output unit is configured with any one of a graphic card directly outputting an image signal of the information processing system, a video distributor outputting an image signal of the information processing system by copying the same, and a video scaler outputting a single image signal by overlapping a plurality of image signals of the information processing system,
 the image signal relay unit is a video matrix connected to the image signal output unit and the sharing screen displaying unit through an image signal cable, and 
 the image signal relay control unit is a video matrix controller connected to the video matrix through a serial cable, wherein 
 the image signal is transmitted through an image signal cable network rather than a network. 
 
     
     
       4. The screen sharing system of  claim 2 , wherein the image signal output unit is provided as a video scaler outputting a single image signal by overlapping a plurality of image signals of the information processing system,
 the image signal relay unit is a video matrix connected to the image signal output unit and the sharing screen displaying unit through an image signal cable, and 
 the image signal relay control unit is a video matrix controller connected to the video matrix through a serial cable, wherein 
 the image signal is transmitted through an image signal cable network rather than a network. 
 
     
     
       5. A screen sharing system for a digital main control room of a nuclear power plant, wherein the screen sharing system includes an information processing system for digital control, the screen sharing system comprising:
 an image signal output unit outputting and transmitting an image signal generated by using the information processing system; 
 a sharing screen displaying unit receiving the image signal and displaying the same; 
 an image signal relay unit connected to the image signal output unit and the sharing screen displaying unit, and receiving and outputting the image signal; 
 a detection signal generating unit generating a detection signal by detecting a manipulation of a control command input means of a power plant which is provided in the information processing system; 
 a sharing control signal generating unit selecting in real-time an image signal in response to the detection signal, and generating a sharing control signal selecting the sharing screen displaying unit selected by a user; and 
 an image signal relay control unit receiving the sharing control signal generated by the sharing control signal generating unit and the detection signal generated by the detection signal generating unit, and controlling input/output of the image signal relay unit such that the image signal selected in real-time according to the received detection signal is displayed on the sharing screen displaying unit selected according to the sharing control signal; 
 wherein the sharing control signal generating unit: selects an image signal selected by a user or selects an image signal in real-time in response to the detection signal; and generates the sharing control signal selecting the sharing screen displaying unit selected by the user, and 
 the image signal relay control unit: receives the sharing control signal generated by the sharing control signal generating unit, and controls input/output of the image signal relay unit such that the image signal selected according to the received sharing control signal is displayed on the selected sharing screen displaying unit; or receives the sharing control signal generated by the sharing control signal generating unit and the detection signal generated by the detection signal generating unit, and controls input/output of the image signal relay unit such that the image signal selected in real-time according to the received detection signal is displayed on the sharing screen displaying unit selected according to the received sharing control signal. 
 
     
     
       6. The screen sharing system of  claim 5 , wherein the image signal output unit is configured with any one of a graphic card directly outputting an image signal of the information processing system, a video distributor outputting an image signal of the information processing system by copying the same, and a video scaler outputting a single image signal by overlapping a plurality of image signals of the information processing system,
 the image signal relay unit is a video matrix connected to the image signal output unit and the sharing screen displaying unit through an image signal cable, and 
 the image signal relay control unit is a video matrix controller connected to the video matrix through a serial cable, wherein 
 the image signal is transmitted through an image signal cable network rather than a network. 
 
     
     
       7. The screen sharing system of  claim 5 , wherein the image signal output unit is provided as a video scaler outputting a single image signal by overlapping a plurality of image signals of the information processing system,
 the image signal relay unit is a video matrix connected to the image signal output unit and the sharing screen displaying unit through an image signal cable, and 
 the image signal relay control unit is a video matrix controller connected to the video matrix through a serial cable, wherein 
 the image signal is transmitted through an image signal cable network rather than a network.